The Leonids will next peak on the Nov 17-18, 2023 night. Velocity: 43.5 miles/sec (swift - 70km/sec). A weak rate enhancement may be visible due to the 1800 trail later on November 21, 15h UT (Maslov, 2007).The Leonids are often bright meteors with a high percentage of persistent trains. An encounter with the 1600 trail (weak rate possible near November 18, 07h UT λ = 235. Sato comments: ZHR may reach 50+ because the model suggests that the dust tends to be concentrated. Maslov adds: meteors should be bright, a ZHR of 200+ seems possible despite the uncertainties. ◦581 different ejection velocities).The possible activity level depends on the ejection velocity (which has a negative sign in this case and observations of meteors from such trails are scarce). Maslov gives 06h UT, Sato obtains 06h20m − 06h27m UT (λ = 236. In 2022, model calculations of Maslov (2007) and Sato (2021) show an approach of the 1733 dust trail on November 19. Each passing year also presents new possibilities from old debris fields. Therefore, when the comet returns in 20, there may not be any meteor storms, but perhaps several good displays of Leonid activity when rates are in excess of 100 per hour. Unfortunately, it appears that the earth will not encounter any dense clouds of debris until 2099. Yet it is not the fresh material we see from the comet, but rather debris from earlier returns that also happen to be most dense at the same time. These outbursts of meteor activity are best seen when the parent object, comet 55P/Tempel-Tuttle, is near perihelion (closest approach to the sun). The Leonids are best known for producing meteor storms in the years of 1833, 1866, 1966, 1999, and 2001. Which will provide in depth information on each shower and how to best view it. Is best seen remains much the same year after year, the moonlight conditions change considerably from one year to the next.Īs we approach the date of each shower's maximum, be sure to consult the latest AMS article about Meteor Showers, (first quarter to last quarter) will be affected by moonlight and difficult to observe. Showers that peak with the moon’s phase greater than one half illuminated Some are not even visible until after midnight. All these showers are best seen after midnight. Particular attention should be noted to the time and moonlight conditions. The meteor showers listed below are the easiest to observe and provide the most activity. Over 900 suspected meteor showers of which about 100 are well established. These meteors are caused by streams of cosmic debris called meteoroids entering Earth's atmosphere at extremely high speeds on parallel trajectories. A meteor shower is a celestial event in which a number of meteorsĪre observed to radiate, or originate, from one point in the night sky called Radiant.
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